Opteka Battery Pack Grip / Vertical Shutter Release for Nikon D300 & D700 Digital SLR Camera's with 2 EN-EL3E Batteries

Dual shutter control for easy vertical shootingInnovative positions for shooting convenienceMagazine-style battery holders for 2 EN-EL3e batteriesTripod mountable, green/red light power indicator2 EN-EL3E Ultra high power True 2000mAh Lithium Ion 7.2v Memory free batteries for maximum performance, Extended shots - Up to 25% more then original, Brand new, 2 Year performance warranty
Product DescriptionOpteka is one of the world's leading producers of high-performance batteries and

Source: Digital Camera and Video Store...